Upgrade your beauty sleep with 100% mulberry silk. Sleeping on a silk pillowcase keeps your skin and hair hydrated, reduces the appearance of fine lines and wrinkles, and minimizes dreaded bed head. Plus, silk fiber contains 18 kinds of amino acids that make it amazing for skin nourishment, hypo-allergenic, and naturally thermoregulating to help maintain body temperature. Standard size measures 20" x 30", 22mm fabric weight, includes one pillowcase.